In the Linux kernel, the following vulnerability has been resolved: net: sched: fix possible refcount leak in tc_new_tfilter() tfilter_put need to be called to put the refount got by tp->ops->get to avoid possible refcount leak when chain->tmplt_ops != NULL and chain->tmplt_ops != tp->ops.
git.kernel.org/linus/c2e1cfefcac35e0eea229e148c8284088ce437b5
git.kernel.org/stable/c/0559d91ee3a2cd81b15ad5cd507539d6da867f88
git.kernel.org/stable/c/8844c750eeb03452e2b3319c27a526f447b82596
git.kernel.org/stable/c/903f7d322c17d8e306d766404b4604e81653902a
git.kernel.org/stable/c/c2e1cfefcac35e0eea229e148c8284088ce437b5
git.kernel.org/stable/c/f8162aed962be8fa07445b2b5928e84ab40dd8d7
ubuntu.com/security/CVE-2022-48639
www.cve.org/CVERecord?id=CVE-2022-48639